Hybrid Cryogenic Tank Construction and Method of Manufacture Therefor
AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorThomas K. DeLay
Life of this patent
Estimating the term…
Abstract
A lightweight, high-pressure cryogenic tank construction includes an inner layer comprising a matrix of fiber and resin suitable for cryogenic use. An outer layer in intimate contact with the inner layer provides support of the inner layer, and is made of resin composite. The tank is made by placing a fiber preform on a mandrel and infusing the preform with the resin. The infused preform is then encapsulated within the outer layer.
Claims23
A method of making a cryogenic tank for containing a cryogenic fluid, said method comprising:
- constructing an inner layer comprised of a matrix of fiber and resin suitable for cryogenic use by placing a fiber preform on a removable mandrel including end fittings and infusing the preform with a resin having high ductibility at low temperatures,
- encapsulating the inner layer with a filament wound outer layer of a fiber-resin composite, in intimate contact with the inner layer, that performs well at low temperatures,
- providing for curing of the inner layer and the outer layer;
- and removing the mandrel.
A lightweight, high-pressure cryogenic tank construction, comprising:
- an inner layer comprising a matrix of fiber and resin suitable for cryogenic use;
- and
- an outer layer in intimate contact with the inner layer and providing support of said inner layer, said other layer comprising a fiber and resin composite.
Dependencies are inferred from the claim text.